<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>index</title>
</head>
<body>
<h1>图书借阅系统</h1>
<form action="login">
    登录账号<input type="text" name="user_code"/><br/>
    登录密码<input type="text" name="password"/><br/>
    <input type="submit" value="登录">
</form>
</body>
</html>